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64 lines
1.7 KiB
Objective-C
64 lines
1.7 KiB
Objective-C
#import <Foundation/Foundation.h>
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#import "NSTimer+Proxying.h"
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#import <objc/runtime.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface NSTimerProxy : NSObject
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@property (nonatomic, weak) id target;
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@property (nonatomic) SEL selector;
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@end
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@implementation NSTimerProxy
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- (void)timerFired:(NSDictionary *)userInfo
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{
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
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[self.target performSelector:self.selector withObject:userInfo];
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#pragma clang diagnostic pop
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}
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@end
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static void *kNSTimer_SN_Proxy = &kNSTimer_SN_Proxy;
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@implementation NSTimer (Session)
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- (NSTimerProxy *)sn_proxy
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{
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return objc_getAssociatedObject(self, kNSTimer_SN_Proxy);
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}
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- (void)sn_setProxy:(NSTimerProxy *)proxy
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{
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#if DEBUG
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assert(proxy != nil);
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#endif
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objc_setAssociatedObject(self, kNSTimer_SN_Proxy, proxy, OBJC_ASSOCIATION_RETAIN);
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}
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+ (NSTimer *)weakScheduledTimerWithTimeInterval:(NSTimeInterval)timeInterval
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target:(id)target
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selector:(SEL)selector
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userInfo:(nullable id)userInfo
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repeats:(BOOL)repeats
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{
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NSTimerProxy *proxy = [NSTimerProxy new];
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proxy.target = target;
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proxy.selector = selector;
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NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:timeInterval
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target:proxy
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selector:@selector(timerFired:)
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userInfo:userInfo
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repeats:repeats];
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[timer sn_setProxy:proxy];
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return timer;
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}
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@end
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NS_ASSUME_NONNULL_END
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